Preliminary experience with superparamagnetic iron oxide-enhanced dynamic magnetic resonance imaging and comparison with contrast-enhanced computed tomography.

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Presentation transcript:

Preliminary experience with superparamagnetic iron oxide-enhanced dynamic magnetic resonance imaging and comparison with contrast-enhanced computed tomography in endoleak detection after endovascular aneurysm repair Shigeo Ichihashi, MD, Nagaaki Marugami, MD, Toshihiro Tanaka, MD, Shinichi Iwakoshi, MD, Norio Kurumatani, MD, Satoru Kitano, MD, Akihiro Nogi, RT, Kimihiko Kichikawa, MD Journal of Vascular Surgery Volume 58, Issue 1, Pages 66-72 (July 2013) DOI: 10.1016/j.jvs.2012.12.061 Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 1 a, Contrast-enhanced computed tomography (CE-CT) demonstrates type II endoleak from lumbar artery. b, Superparamagnetic iron oxide (SPIO)-enhanced magnetic resonance imaging (MRI) also clearly demonstrates type II endoleak from lumbar artery. c, CE-CT in another patient demonstrates minimal type II endoleak from lumbar artery. d, SPIO-enhanced MRI also shows type II endoleak from lumbar artery. Journal of Vascular Surgery 2013 58, 66-72DOI: (10.1016/j.jvs.2012.12.061) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 2 a, Plain computed tomography (CT). b, Contrast-enhanced computed tomography (CE-CT), arterial phase. c, CE-CT, equilibrium phase. d, Magnetic resonance imaging (MRI) dynamic series. e, Equilibrium phase, 2 minutes after superparamagnetic iron oxide (SPIO) injection. CT images shows (a-c) no enhanced lesion in the aneurismal sac. Arrowheads indicate calcifications of the arterial wall. MRI subtraction dynamic image (d and e) shows enhanced lesion in the left side of the graft and the enhanced area broadened on equilibrium phase. Journal of Vascular Surgery 2013 58, 66-72DOI: (10.1016/j.jvs.2012.12.061) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 3 a, Completion angiogram after endovascular aneurysm repair (EVAR) shows bilateral renal arteries (arrows) are patent. b, Superparamagnetic iron oxide (SPIO)-enhanced magnetic resonance angiography (MRA) clearly shows patent bilateral renal arteries (arrows) same as completion angiogram. Journal of Vascular Surgery 2013 58, 66-72DOI: (10.1016/j.jvs.2012.12.061) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 4 a, Plain computed tomography (CT) axial image. b, Superparamagnetic iron oxide (SPIO)-enhanced dynamic magnetic resonance imaging (MRI) axial image with subtraction. c, Magnetic resonance angiography (MRA). a and b, Arrowheads show compression of the left iliac limb. SPIO-enhanced MRA (c) clearly showed the stenosis of the left iliac limb (arrow). Journal of Vascular Surgery 2013 58, 66-72DOI: (10.1016/j.jvs.2012.12.061) Copyright © 2013 Society for Vascular Surgery Terms and Conditions